The heat required to raise the temperature of the gold from the initial temperature to then final temperature is 693 cal.
The given parameters:
The heat required to raise the temperature of the gold from the initial temperature to then final temperature is calculated as follows;
[tex]Q = mc \Delta t\\\\Q = mc (t_2 - t_1)\\\\ Q = 150 \times 0.0308 \times (175 - 25)\\\\Q = 693 \ cal[/tex]
Thus, the heat required to raise the temperature of the gold from the initial temperature to then final temperature is 693 cal.
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